Hadrian's Villa is a vast, UNESCO World Heritage site located in Tivoli, near Rome. It was built in the 2nd century AD by Emperor Hadrian as his retreat and "ideal city." Spanning over 120 hectares, the complex showcases stunning architecture inspired by monuments the Emperor saw during his travels across the Roman Empire. Key features include the Canopus (a long reflecting pool) and the unique Maritime Theater. It stands as a monumental testament to the grandeur and cultural curiosity of Imperial Rome.

Villa d'Este is a masterpiece of Italian Renaissance gardens, located in Tivoli near Rome. It is famous worldwide for its spectacular concentration of fountains, nymphs, grottoes, and water features, which demonstrate hydraulic engineering genius. A UNESCO World Heritage Site, it was built in the 16th century for Cardinal Ippolito II d'Este and is considered one of the finest examples of a Renaissance garden in Europe.